Here is the Union Pacific with its new-at-the-time SD70M with the new “Building America” paint and the giant UP wing logo on the nose of these big diesels. Watch this big power working hard across the Southwest in New Mexico, Arizona and California. Scenic highlights include Steins Mountain, the Dragoon Mountain, the Maricopa Mountains, the Salton Sea and San Timoteo Canyon on Beaumont Hill. See and hear them flying across the desert and lugging heavy freight upgrades.